Gustav Heinrich Theodor Eimer (?-1898)

"Orthogenesis is a universal law." (1898)

A neo-Lamarckian whose teleological views led him to become an orthogeneticist, one of few in Europe (the theory was much more widespread in America, where it was championed by Cope, Hyatt, Packard, etc.). Popularized the term "orthogenesis." A major opponent of Weismann.

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Entstehung der Arten (1888)

On Orthogensis and the Importance of Natural Selection in Sepcies-Formation (1898)